Papers › Magic123: One Image to High-Quality 3D Object Generation Using Both 2D and 3D Diffusion Priors

Magic123: One Image to High-Quality 3D Object Generation Using Both 2D and 3D Diffusion Priors

30 Jun 2023arXiv:2306.17843archive 2025-07-28

Guocheng Qian, Jinjie Mai, Abdullah Hamdi, Jian Ren, Aliaksandr Siarohin, Bing Li, Hsin-Ying Lee, Ivan Skorokhodov, Peter Wonka, Sergey Tulyakov, Bernard Ghanem

We present Magic123, a two-stage coarse-to-fine approach for high-quality, textured 3D meshes generation from a single unposed image in the wild using both2D and 3D priors. In the first stage, we optimize a neural radiance field to produce a coarse geometry. In the second stage, we adopt a memory-efficient differentiable mesh representation to yield a high-resolution mesh with a visually appealing texture. In both stages, the 3D content is learned through reference view supervision and novel views guided by a combination of 2D and 3D diffusion priors. We introduce a single trade-off parameter between the 2D and 3D priors to control exploration (more imaginative) and exploitation (more precise) of the generated geometry. Additionally, we employ textual inversion and monocular depth regularization to encourage consistent appearances across views and to prevent degenerate solutions, respectively. Magic123 demonstrates a significant improvement over previous image-to-3D techniques, as validated through extensive experiments on synthetic benchmarks and diverse real-world images. Our code, models, and generated 3D assets are available at https://github.com/guochengqian/Magic123.

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biased_softplus guochengqian/magic123/activation.py official repository ran fingerprinted Apache-2.0 (permissive) · fb07704f3a4c0430 · report
unflatten_with_named_tensor guochengqian/magic123/dpt.py official repository ran Apache-2.0 (permissive) · f2952bdbf9446f24 · report
forward_flex guochengqian/magic123/dpt.py official repository unverified Apache-2.0 (permissive) · e243c3c7c7f3110a · report
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get_encoder guochengqian/magic123/encoding.py official repository unverified Apache-2.0 (permissive) · 9d6732ad20b669d3 · report
poisson_mesh_reconstruction guochengqian/magic123/meshutils.py official repository unverified Apache-2.0 (permissive) · b7f0e912438abda8 · report

Tasks

Image to 3D

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Diffusion

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